Sheet-register for printing-presses.



C. D. & J. M. TREACY.

SHEET REGISTER FOR PRRNTING PRESSES.

APPLICATION FILED APR.23;1915.

1, 1?3,6. Patentefi Feb. 29, 1916.

2 SHEETS-SHEET I C. D. & J. M. TREACY.

SHEET REGISTER FOR PRINTING PRESSES. APPLICATION FILED APR. 23. I915.

Patented Feb. 29, 1916.

2 SHEETS-SHEET 2.

THE COLUMBIA PLA! -IOGR.APH cm, WASHINGTUN- D. C.

35 isa perspective of one ofthe' leaves of the sans UNT i CHARLES D. TREACY AND JOHN M. TREACY, OF ST. PAUL, MINNESOTA.

Specification of Letters Patent.

Patented Feb. 29, 1916.

Application filed April 23, 1915. Serial No. 23,416.

To all whom it may 001) cern Be it known that we, CHARLES D. TREACY and J OHN M. TREACY, citizens of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have in vented a new and useful Improvement in Sheet Registers for Printing Presses, of which the following is a specification. f

This invention relates to improvements in sheet registers, for printing presses, and has for its primary object the production of automatically operating mechanism for causing the accurate registration of the sheet without requiring precise adjustment thereof, and permitting a press to be run at a higher rateof speed than heretofore with a corresponding increase in the output of work within a specified time, and producing more satisfactory results and eeonomyin the use of material.

A further object isthe production of gage mechanism of the class stated, which is simpler inconstruetion and more effective in operation, the mechanism being less liable to get out of order than with devices heretofore used, and the parts being more easily applied and adjusted for use.

In the accompanying drawing forming part of this specification, Figure 1 is a plan of a platen and what is usually termed the gripper'bar of a printing press of usual construction illustrating our invention applied thereto; Fig. 2 is a section of a detail taken on the line X-X, Fig. 1; Fig. 3 is a section taken on the line YY of Fig. 1-; Fig. 4

hinge forming part of the side guide; Fig. 5 is a perspective of one of the parts of the side guide, and Fig. 6 is a perspective of a detail illustratingan alternative construction, part of the structure being-broken away and in section.

In the drawing A indicates the platen and B what is commonly termed the gripper bar uponwhich'the platen is pivoted to swing on an axis at 2 in the usual manner. The gripper bar is formed with the usual longitudinal slot 3 through which the bolts securing fastening means constituting part of the sheet gages can be secured in the usual manner.

The invention consists in providing a pair of front gages C and D and a side gage E, said gages being made to cooperate with the platen to assist in accurately adjusting the I sheets to beprinted upon in pr nting posiby hand or automatically. The front gages C and D engage the leading or front edge of the sheet, such as F, while the side gage engages one of the side edges of the sheet, said gages being made to move the sheet automatically as the platen closes upon theform, causing the sheet to register in accurate printing position. T he front gages are similar in construction, and a description of one will therefore sufliee. 4t and 5 indicate the leaves of a hinge member, hinged on an axis lying parallel with the axis of the platen, the member 4 being formed with a slot 6 lying transverse to the slot 3 in the gripper bar. The leaf 4 is secured on the gripper bar by means of a bolt 7 passing through the slots 8 and 6, the slot 6 permitting the ready application of the leaf 4 on the gripper bar transverse to the'adjustment permitted by the slot 3. A pair of studs 8 projecting downwardly from the lower surface of the leaf 4: engagesin a slot 9 in the gripper bar to prevent the leaf 4. turning on the shank of the bolt 7 as a pivot. The leaf 5 is hinged on the leaf 4: by the pintle 10 around which a spring 11 is coiled. said spring tending to close the leaves of the hinge together with the leaf5 pressing downwardly upon the surface of the platen A. Extending outwardly from the extremity of the leaf 5 is an arm 12. which is threaded into the end of the leaf 5 and held in adjusted position outwardly by a pair of lock nuts 13 and 14,

thenut 13 being placed in an opening 15 in the leaf 5. The outer end of the arm 12 carries a stop 16 in the form of a block having abroad bearing surface on its outer. end from which a guide loop 17 made of wire or other suitable material extends. the sides of said loop being'seated in the block and the of the sheet of material to be printed upon.

The frontgages are also positioned on the gripper bar as desired, the said bolts 7 holding them stationary after they have been adjusted. i

The side gage E consists of a hinge having two leaves 20 and 21, the leaf 20 constituting the side gage support being secured on the gripper bar in stationary position by means of a bolt 22 passing through a slot 23 in the leaf 20 and through the slot'3 in the gripper bar. The leaves 20 and 21 are hinged together by the pintle 2 1, lying on an axis parallel with the axis of the-platen, around which a coil spring 25 is placed, the ends of said spring'engaging the leaves and causing the leaf 21 to be urged downwardly against the surface of the platen, but permitting it to swing therewith. To the forward free end of the leaf 21 is pivotally secured the laterally extending member 26 of a forwardly extending arm 27, constituting the side gage arm, by means of a pivot pin 28 passing through the hinge leaf 21 and the member 26, the axis of "said pivot connection being disposed transverse to the axis of the hinge leaf 21. By this means the arm 27 is free to swing laterally about the pin28 as a pivot in an arc in a plane lying parallel to the surface of the platen. 1

On the outer free end of the arm 27'is a gage block 29 having a broad bearing side 30, facing inwardly and from which projects a guide loop 31 forminga guide below which the side edge 32 of the sheet of material to be printed upon is engaged and held while the gage block 29 moves the sheet laterally into accurately registering position. The loop 31 has its sides passing through the block29 in the same manner as appearing on the gage blocks 16.v The manner of mounting the gage block 29 on the arm 30 is by forming the block with a dovetail groove 33 and by fitting the arm 27 in said groove, whereby the gage block can be -moved longitudinally on the arm 27 into any desired position, but is prevented from turn ing. A' set screw 34. passing downwardly through the block can be turned tightly against the surface of the arm 27 to hold the block in selected position upon the arm.

Motion is imparted to the side gage arm by means of a pitman 35, one end of which is pivotally' secured to said arm at a point distanced outwardly from the pivot 28 by means of the pivot pin 36 and the other end secured by a pivot 37 to a fixture or bracket 38, the body'of which is secured to thestationary leaf member 20 by means of the' screws 39 and 40. The bodyof the fixture 38 is formed with a slot 41 through which the screw 49 passes. said slot describing an arc from the axis of the screw stroke imparted by the pitman 35 to the arm 27 during the closing; and opening movements of the platen. By moving the outer end of the bracket 38 in one direction the length of stroke of the arm 27 about the pivot 28 is lengthened, and by moving the free end of the bracket 38 in the opposite direction and securing the bracket by the screws 39 and 4.0,the length of stroke of said arm 27 is shortened. The lengthening and shortening of the stroke of the arm 27 ca-n by this construction be varied to suit the requirements of the material being printed upon and producing a wider range of usefulness of a side gage than heretofore.

In the construction illustrated in Fig; 6

the leaf member 45, which issecured in; stationary position upon the gripper bar is formed with a projection 46 beyond the pintle 17and the leaf memberA-S of said hinge is formed with a. cylindrical opening 4L9 radiating outwardly from the axis of the pintle 17. In this cylindrical opening is placed a plunger 50, said plunger-being formed with a shank 51 projectingthrough position in which the sheet to be printed is made to register when the platen is in open I position, that is when it moves to cooperate with the type form to print the sheet of material to be placed on the surface of the platen, the extension 46 of the leaf-45 forces the head 50 into the passage 49 against the tension of the spring 54:, thus moving the arm27 with its gage into position to accurately adjust the sheet of material laterally into registering position. The spring 54 forcing'the head 50 back when theplaten opens swings the arm 27 back into retracted position. v v I 3 In accordance with the patent statutes, we have described the-principles of operation of our invention together with theapparatus which we now considertorepresent thebest embodiment'thereof, but we desire to have it understood that the construction shown is only illustrative, and that the invention can be carried out by other means and applied to uses other than those above set forth within the. scope of the following claims.

1 Having described our invention, what we claim as new and desire to protect by- LettersPatent is: I

1. In combination with a platen hinged to position, but as-the platen-moves into closed I open and'close and a gripper bar operatively connected with said platen, a side stop on said platen for registering a sheet of material to be printed, consisting of an arm hinged on said bar on an axis parallel with the axis of said platen to swing with the opening and closing movements of said platen and pivoted to turn laterally in an arc in a plane parallel to the surface of the platen, and a pitman arranged to turn said arm laterally by the closing movement of said platen and move said sheet into accurate registering position.

2. In combination with a platen, a gripper bar pivoted parallel to the same and about which said platen swings on an axis, a gage support secured to said bar and hinged to swing on an axis parallel with the axis of said platen, a gage arm pivoted on said support to move with the platen and to swing laterally in an arc in a'plane parallel to the surface of the platen, and a pitman movably attached to said support and arm and arranged to impart said swinging movement to said arm when said platen swings.

3. In combination with a movable platen, a gripper bar pivoted parallel to the same and about which the platen swings on an axis, an end gage hinged to said bar, a side gage support secured to said bar having a freely hingedmember free to turn on an axis lying parallel to the axis of said platen, a side gage arm pivoted on said freely hinged member to swing laterally in an are having a gripper bar hinged thereto,

lying in a plane parallel to the surface of the platen, a fixture pivoted upon said side gage support and secured to said pitman, said fixture and pitman being arranged to impart an oscillating movement to said side gage arm as said platen swingsand means for holding said fixture adjusted on its pivot, whereby the length'of throw of said side arm can be regulated.

4. The combination with a movable plaen o a gage arm secured to said bar and adapted to swing out of the plane of the platen, and means actuated by the movements of said platen and bar with respect to each other whereby said arm receives movement in the plane of the platen.

5. The combination with a movable platen having a-gripper bar hinged thereto, of a gage arm secured to said bar and adapted to swing out of the plane of the platen, and means automatically actuated by the mutual movements of said platen and bar whereby said arm receives movement in the plane of said platen.

In testimony whereof, we'have signed our names to this specification in the presence of two subscribing witnesses.

CHARLES D. TREACY. JOHN M. TREACY.

Witnesses:

F. G. BRADBURY, STELLA L. WASCHEUBERGEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washingtoml). C. 

